Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Chevy Tech
GL4x4 Live! GL4x4 Casino







Search
Reply
 
Thread Tools
Old October 13th, 2013, 10:08 AM   #1
Wehan
Senior Member
 
Wehan's Avatar
 
Join Date: 10-07-06
Location: Charlotte, MI
Posts: 2,290
iTrader: (25)
Mentioned: 2 Post(s)
Default Low oil pressure issue

I have a 1992 c1500 with a 350/700r4 175k on the odometer. On initial startup it has around 40psi at idle and at speed, after it warms up it dips down to around 20-25 at speed and rite on the caution side of the end of the sweep (probably around 10psi with a slight rod knock at idle. I'm thinking I'll put in a high volume oil pump and while I have the pan dropped I'll see if any of the rods feel any looser than the rest and consider a fresh bearing on any suspect ones. Thoughts?
__________________
Wehan is offline   Reply With Quote
Old October 13th, 2013, 10:24 AM   #2
in2deep
Hole tester
 
Join Date: 05-06-10
Location: fremont,mi
Posts: 1,271
iTrader: (3)
Mentioned: 0 Post(s)
Default

sounds worn out. if you just put a hv pump in it you may run into a oil burning problem do to the pump spraying to much oil on the cyl walls for the rings to keep up with. I would roll new mains and rod bearings in and that should help a lot. you can do all the bearings but the upper thrust main. summit racing has cheap but good main and rod bearing. weld or epoxy the pick up to the pump it will stop air from sucked into the pump.
in2deep is offline   Reply With Quote
Old October 14th, 2013, 10:26 AM   #3
Iggy
Senior Member
 
Iggy's Avatar
 
Join Date: 01-02-12
Location: Traverse City, MI
Posts: 129
iTrader: (7)
Mentioned: 0 Post(s)
Default

Time for bearings - you do have sufficient oil pressure, but the fact you are on the bottom end of the scale says you have clearance in the bearing.
Iggy is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Chevy Tech
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -5. The time now is 06:37 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2005 - 2012 Cracker Enterprises - Powered by Linux
vB Ad Management by =RedTyger=
Page generated in 0.06333 seconds with 16 queries